package com.yc.demo.d0303;

import com.google.gson.Gson;
import com.yc.demo.bean.Result;

import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.annotation.*;
import java.io.IOException;
import java.util.Date;

@WebServlet(name = "loginsServlet", value = "/loginsServlet")
public class loginServlet extends HttpServlet {


    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        request.setCharacterEncoding("utf-8");
        response.setCharacterEncoding("utf-8");
        response.setContentType("application/json;charset=utf-8");

        Result result = new Result(0,"",null);
        
        //验证用户输入的验证码是否正确
        String ucode = request.getParameter("vcode");
        //获取会话中保存的验证码
        Object vcode = request.getSession().getAttribute("vcode");
        if(vcode.equals(ucode) == false){
            result.setMsg("验证码输入错误!");
            }else {
                String name = request.getParameter("name");
                String pwd = request.getParameter("pwd");
                if ("yc".equals(name) || "zs".equals(name) || "ls".equals(name) && "123".equals(pwd)){
                    result.setCode(1);
                    result.setMsg("登录成功!");

                    //由于要显示登录事件，添加事件
                    request.getSession().setAttribute("loginedTime",new Date());
                    request.getSession().setAttribute("loginedUser", name);
                    //获取登陆前访问的页面
                    Object requestURL = request.getSession().getAttribute("requestURL");
                    //放到结果对象中
                    result.setData(requestURL);
                }else {
                    result.setCode(0);
                    result.setMsg("用户名或密码错误");
                }
            }
        String json = new Gson().toJson(result);
        response.getWriter().append(json);
    }
}
